针对两种不确定线性组合系统提出了存在分散鲁棒反馈控制器和输出跟踪器的充分条件．系统中不确定项具有数值界，可不满足所谓的匹配条件．对于第一种系统，其不确定项可以是时变的，其受控系统能以任意给定的收敛率指数渐近稳定；第二种系统中的不确定项是时不变的，文中给出的鲁棒跟踪器可使受控系统渐近跟踪给定的参考输入 A sufficient condition for the existence of decentralized robust feedback controller and output tracker for two uncertain linear systems is proposed. Uncertain items in the system have numerical bounds that may not satisfy the so-called matching condition. For the first system, the uncertainties can be time-varying, and the controlled system can be asymptotically stable with any given convergence rate index. The uncertainties in the second system are time invariant. Robust tracker out of the control system allows the asymptotic tracking of a given reference input